coincident

adj

1. Of two or more objects: being in the same location.

   “It is neceſſary therefore that this nevv created or replaced thing do not onely fill ſome part of the Space [i.e. “imaginary space”] above-mentioned, or be coincident and coextended vvith it, but alſo, that it have no dependance upon our thought.”

   “[T]he ſides of the angles A and D are coincident; vvherefore thoſe angles are equall. VVhich vvas to be Dem[onstrated].”

   “[A]ll the Colours of the ſame Ring muſt be coincident, and by their mixture exhibit a vvhite Ring.”

   “Hitherto, the Universe of stars has always been considered as coincident with the Universe proper, as I have defined it in the commencement of this Discourse. It has always been either directly or indirectly assumed—at least since the dawn of intelligible Astronomy—that, were it possible for us to attain any given point in space, we should still find, on all sides of us, an interminable succession of stars.”

   “On each soft side [of the White Whale]—coincident with the parted swell, that but once leaving him, then flowed so wide away—on each bright side, the whale shed off enticings.”

2. Of two or more events: occurring at the same time; contemporaneous.

   “The 13th year of his [Darius II's] Reign vvas coincident in vvinter vvith the 20th of the Peloponneſian vvar, and the years of that vvar are ſtated by indiſputable characters, and agreed on by all Chronologers: the vvar began in ſpring, Ann[o] 1. Olymp[iad] 87, laſted 27 years, and ended Apr. 14. An. 4. Olymp. 93.”

   “Whatever the origin of her walks on the Budmouth Road, her return from those walks was often coincident with Farfrae's emergence from Corn Street for a twenty minutes' blow on that rather windy highway―just to winnow the seeds and chaff out of him before sitting down to tea, as he said.”

   “General trends, like the coincident decline of the nation-state and the growth of antisemitism, can hardly ever be explained satisfactorily by one reason or by one cause alone.”

   “Duverger's health declined. He seemed unable to shake the bronchitis and the coincident infections it opened him to.”

3. Of two or more things: having the same qualities; being in accordance; consonant, matching.

   “[A] biſhop is he to whomſoeuer the publike cure and charge of ſoules is committed, without any limitation of place. And ſo the name of biſhop is coincident with the office of apoſtle, or any publike paſtor, doctor, or curat of the vniuerſall flocke of Chriſt.”

   “For, say they, the whole doctrine of Christianity teaches nothing but what is perfectly suitable to, and coincident with, the ruling principles; that a virtuous and well-inclined man is acted by and with the main interest that he proposes to himself.”

4. (obsolete)Chiefly followed by to: accompanying, concomitant, incident.

   “Empires of Kings, are novv, and ever vvere / As Saluſt ſaith, co-incident to feare.”

noun

1. (obsolete)One of multiple incidents or things which coincide with each other; a concomitant.

   “In truth, vve thought it (coming immediately from an infected place) an hazardous incivilitie, to put our ſelves upon them; for if any ſiniſter accident had fallen out about the ſame time (for Coincidents are not alvvaies Cauſes) vve ſhould have rued it for ever.”

   “[…] I despayre of ever living to see a man truely noble indeede: they may be called "My Lord;" titles and sounds and inferior trifles; but when Virtue and blood are coincidents, they both add lustre and mutual excellencys.”

   “When I was in London I was shocked at the alteration in our friend Tobin's looks and appearance. Those who always interpret two coincidents into cause and effect would surmise that marriage has been less conducive to his health than to his moral comfort. It would give me serious pleasure to have a more cheerful account of him.”